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In deliveryUnited KingdomWorksFramework agreement£4,600,000,000

Decommissioning Nuclear Waste Partnership (DNWP)

Published
Published 31 July 2023
Deadline
Closed 9 October 2023

Overview

Sellafield Ltd is responsible for safely operating and decommissioning Europe's largest, most complex nuclear site, which is home to legacy nuclear facilities that are some of the most hazardous buildings in Western Europe. Sellafield Ltd, through the Decommissioning and Nuclear Waste Partners (DNWP) Framework opportunity, has brought together four partners across four Lots to provide a full suite of expertise and support to deliver decommissioning activities and projects, including asset care. Delivery will be across nuclear facilities on the Sellafield licenced site that are in mix of states including operational, post operation clean out (POCO), decommissioning and demolition. Consequently, the scope of work for the DNWP Framework will include construction delivery, demolition related works, associated technical services (including safety case and design) and waste management with the scope aligned across the following four Lots:<br/><br/><br/>• Lot 1 Remediation Partners<br/>• Lot 2 Pond Retrievals Partner<br/>• Lot 3 Silos Retrievals Partner<br/>• Lot 4 Integrated Nuclear Waste Partner

Key details

Country
United Kingdom
Status
In delivery
Category
Works
Estimated value
£4,600,000,000
Procedure
Selective
Contract type
Framework agreement
Published
31 July 2023
Deadline
Closed
Classification (CPV)
DesignsIndustrial machineryConstruction equipmentSafety casesConstruction workSite preparation workDemolition, site preparation and clearance workSite preparation and clearance work+16 more

Award outcome

Awarded value
£6,200,000,000
Award date
30 October 2025
Contract period
5 October 2025 → 5 November 2040
Winners
  • A2R (Altrad Support Services Limited and AtkinsRéalis UK Limited)
  • Amentum Clean Energy Limited
  • NDS (Altrad Support Services Ltd, Cavendish Nuclear Ltd, Shepley Engineers Ltd)
  • TDA (AtkinsRéalis UK, Amentum Clean Energy, Westinghouse Electric Company UK)

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Notice history

Every published notice in this contracting process, newest first.

  1. Contract

    3 November 2025

    View notice ↗
  2. Tender Update

    14 August 2023

    View notice ↗
  3. Contract Notice

    31 July 2023

    View notice ↗

Contracting authority

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Awarded: Decommissioning Nuclear Waste Partnership (DNWP) — won by A2R (Altrad Support Services Limited and AtkinsRéalis UK Limited) +3 — Skim